Win98 logon problems

Hi,

I have a weird problem with a 6 or 7 Windows 98 PCs. At
The place I work has Active Directory, on Windows 2000
servers and Windows 2000 Pros. I have to keep those 7 PCs
because a old DOS application the company needs.

In the company policy, a user gets lock after 3 invalid
tries of his password. The account gets lock for 45
minutes.

I have a 3 users dial-in with PC anywhere to work on those
PCs. If one of those dial-up user makes a typo, they get
lock in the AD, after only one try. I'm not sure, but I
thinkt that sometimes they get lock even if the password
is good.

Anyone ever saw that problem?

Thanks

Ben